Finding the Fourth Proportional to 8,784.78, 13,178.93 and 3,238.14

Step by Step Solution

1. Step 1: Write the proportion equation
   8,784.78 : 13,178.93 = 3,238.14 : x
2. Step 2: Convert to fraction form
   8,784.78/13,178.93 = 3,238.14/x
3. Step 3: Cross multiply
   8,784.78x = 13,178.93 × 3,238.14
4. Step 4: Simplify right side
   8,784.78x = 42,675,253.62
5. Step 5: Solve for x
   x = 42,675,253.62/8,784.78
6. Step 6: Final answer
   x = 4,857.86